Migrate MCP and utilities to CircuitPython, including color GIF and volume fixes

2026-06-22 10:13:10 -04:00
parent 2863f21459
commit 8f871e499e
53 changed files with 4239 additions and 108 deletions
@@ -0,0 +1,85 @@
+"""CircuitPython SD card utility using sdioio and storage.
+
+Uses SDMMC 1-bit mode on Pins: sck=board.IO2, cmd=board.IO1, data0=board.IO3.
+"""
+
+import os
+import board
+import sdioio
+import storage
+
+class SDCardManager:
+    def __init__(self, mount_point='/sd'):
+        self.mount_point = mount_point
+        self.sd = None
+        self.mounted = False
+
+    def mount(self):
+        if self.mounted:
+            print(f"SD card already mounted at {self.mount_point}")
+            return True
+
+        try:
+            print("Initializing SDCard (SDMMC 1-bit mode: sck=2, cmd=1, d0=3)...")
+            self.sd = sdioio.SDCard(clock=board.IO2, command=board.IO1, data=[board.IO3], frequency=20000000)
+            vfs = storage.VfsFat(self.sd)
+            print(f"Mounting SD card to {self.mount_point}...")
+            storage.mount(vfs, self.mount_point)
+            self.mounted = True
+            print("SD card mounted successfully!")
+            return True
+        except Exception as e:
+            print(f"Failed to mount SD card: {e}")
+            self.sd = None
+            self.mounted = False
+            return False
+
+    def unmount(self):
+        if not self.mounted:
+            return True
+
+        try:
+            print(f"Unmounting SD card from {self.mount_point}...")
+            storage.umount(self.mount_point)
+            if self.sd:
+                try:
+                    self.sd.deinit()
+                except:
+                    pass
+            self.mounted = False
+            self.sd = None
+            print("SD card unmounted.")
+            return True
+        except Exception as e:
+            print(f"Failed to unmount SD card: {e}")
+            return False
+
+    def is_mounted(self):
+        return self.mounted
+
+    def list_files(self):
+        if not self.mounted:
+            print("SD card is not mounted.")
+            return None
+        try:
+            return os.listdir(self.mount_point)
+        except Exception as e:
+            print(f"Error listing SD card files: {e}")
+            return None
+
+    def get_info(self):
+        if not self.mounted:
+            return None
+        try:
+            stat = os.statvfs(self.mount_point)
+            block_size = stat[0]
+            total_blocks = stat[2]
+            free_blocks = stat[3]
+
+            return {
+                "total_bytes": total_blocks * block_size,
+                "free_bytes": free_blocks * block_size
+            }
+        except Exception as e:
+            print(f"Error getting SD card info: {e}")
+            return None